20040440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3767}}^1$

素因数の和:3804

約数の個数: 64

約数和(自身を含む): 54259200

約数和(自身を除く): 34218760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3767, 5320, 7534, 15068, 18835, 26369, 30136, 37670, 52738, 71573, 75340, 105476, 131845, 143146, 150680, 210952, 263690, 286292, 357865, 501011, 527380, 572584, 715730, 1002022, 1054760, 1431460, 2004044, 2505055, 2862920, 4008088, 5010110, 10020220, 20040440]

約数ペア:

[(1, 20040440), (2, 10020220), (4, 5010110), (5, 4008088), (7, 2862920), (8, 2505055), (10, 2004044), (14, 1431460), (19, 1054760), (20, 1002022), (28, 715730), (35, 572584), (38, 527380), (40, 501011), (56, 357865), (70, 286292), (76, 263690), (95, 210952), (133, 150680), (140, 143146), (152, 131845), (190, 105476), (266, 75340), (280, 71573), (380, 52738), (532, 37670), (665, 30136), (760, 26369), (1064, 18835), (1330, 15068), (2660, 7534), (3767, 5320)]